Save With Water-Efficient Toilets

Water-efficient toilets have become essential in today's homes, reducing water usage while still providing a strong flush. Whether you're renovating your bathroom or want smaller water bills, these toilets offer practical answers. At Allied Plumbing & Heating Supply Co. in Chicago, we've reviewed the top five water-efficient toilets for 2025.

The Top 5 Water-Efficient Toilets for 2025

Water-efficient toilets are a great way to save water and money. Knowing what features each one has can help you decide which one best suits your needs.

TOTO Drake II 1G Two-Piece Toilet

The TOTO Drake II 1G Two-Piece Toilet is a water-saving powerhouse. Using 1.28 gallons per flush (gpf), it meets EPA's WaterSense standards, making it a top pick for 2025. TOTO's TORNADO FLUSH technology produces a swirling action that scours the bowl clean while using less water, and the CEFIONTECT ceramic glaze creates a smooth surface so waste slides into the bowl instead of sticking to the edges.

Setting up the Drake II is straightforward, as it fits the standard 12-inch plumbing connections that most homes already have. Users love how quietly it works and how thoroughly it flushes. While it costs more than basic models, the water savings and less frequent cleaning typically make up for the price. It comes in Ebony, Cotton, Colonial White, Bone, or Sedona Beige.

Kohler Highline Classic Comfort Height Toilet

The Kohler Highline Classic comfort height toilet saves water, using 1 gpf — 30% less than federal standards — and cutting your water bills while still flushing effectively.

The height of this toilet sets it apart from other models. At 16.5 inches from floor to rim (without the seat), it stands taller than regular toilets. This makes sitting and standing easier for tall people, seniors, or anyone with mobility issues. The elongated bowl gives extra sitting space with a modern look.

With Kohler's Pressure Lite flushing system, you get reliable, clog-free performance. Choose from White, Biscuit, or Black colors. It fits standard 12-inch rough-ins, though you may want to hire a professional for installation. While the two-piece design needs more cleaning than a one-piece model, many prefer its lower cost and easier installation.

American Standard H2Option Dual-Flush Toilet

The American Standard H2Option lets you control water use with its two-button system. Use 0.92 gallons of water by pressing the partial-flush button for liquid waste, or use 1.28 gallons with the full-flush button for solids.

The H2Option includes a PowerWash rim that scrubs the bowl with each flush, and the EverClean surface fights bacteria, mold, and mildew growth. These features allow your toilet to stay cleaner longer, with fewer harsh chemicals needed. Available in White, the H2Option features an elongated bowl at standard height. Installation needs a 12-inch rough-in.

Niagara The Original Ultra-High-Efficiency Toilet

The Original is Niagara's ultra-high-efficiency toilet that uses 0.8 gpf, half of what typical water-saving toilets use. Don't be alarmed by the small amount of water, though, as Niagara's Stealth technology uses a vacuum-assisted flush system to create a suction that pulls waste down while refilling the trap. In 2021 alone, Stealth technology saved 850 million gallons of water nationwide. The Original also flushes quietly, perfect for nighttime trips to the bathroom.

The Original comes in White with a clean, modern design. Its elongated bowl is comfortable, and the standard height suits most. It needs a standard 12-inch rough-in, and some owners get professional installation to maximize the vacuum system. Users love its water savings and flush power, but some say the lower water level takes getting used to.

Woodbridge T-0019 Dual Flush Elongated One-Piece Toilet

The Woodbridge T-0019's dual-flush system uses 1 gallon for liquid waste and 1.6 gallons for solids. This flexibility helps you trim water bills while still having flushing power when needed. The one-piece design looks sharp and makes cleaning easy, as there's no gap between the tank and the bowl to trap dirt.

This toilet features a fully glazed flush system that's whisper-quiet and helps prevent clogs. The elongated bowl and chair-like height make sitting more comfortable for most adults. It boasts a Maximum Performance flush score of 1000 grams, which indicates how much waste it can remove in one flush.

Available in Cotton White, the T-0019 fits nicely in most bathroom styles. Installation is straightforward, but as one solid piece, it weighs more than two-piece models, and you might need help lifting it. Its skirted design hides the trapway, giving your bathroom a cleaner, more upscale look.

Key Factors To Consider When Buying a Water-Efficient Toilet

When shopping for a water-saving toilet, there are a few key details to note. First, look for the WaterSense label. This EPA certification means the toilet saves water while still working well. Only toilets that pass independent testing get this label, so it's your assurance of quality and efficiency.

Different flush systems offer different benefits. Pressure-assisted toilets use compressed air for extra flushing power but tend to be noisy. Gravity flush toilets — the kind most of us are familiar with — use water weight from the tank to create flushing action. Dual flush toilets give you two options: less water for liquid waste, more water for solids.

Don't overlook design and comfort features. One-piece toilets look sleeker and are easier to clean, but two-piece models cost less. Chair-height toilets can make sitting and standing easier. Elongated bowls provide more comfort than round ones, but need more space.

How Water-Efficient Toilets Contribute to Sustainability

Water-efficient toilets transform conservation efforts. Older toilets waste up to 6 gpf, while modern ones use as little as 0.8 gpf. This huge drop saves water and reduces the energy needed for treatment and pumping, helping your entire community.

EPA data shows WaterSense toilets save over $170 yearly, which amounts to $3,400 over their lifetime. These toilets also help buildings earn Leadership in Energy and Environmental Design, or LEED, certification, supporting wider sustainability goals.

If everyone switched to water-efficient toilets, the impact on sustainability would be significant, saving 260 billion gallons yearly. Choosing an efficient toilet means joining a movement to secure water for future generations.

Making the Right Choice for Your Home

Switching to a water-efficient toilet is an investment that pays off for years. From TOTO's whirlpool flush to Niagara's minimal water usage, there's something for every preference. If you need help picking the best high-efficiency toilet for your home, visit Allied Plumbing & Heating Supply Co. in Chicago. We'll help you find a toilet that can slash your water use, shrink your bills, and reduce your environmental impact.

Image by Алексей Вечерин is licensed with Pexels License